EP 1062417 A1 20001227 - METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE
Title (en)
METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE
Title (de)
VERFAHREN UND VORRICHTUNG ZUM BETREIBEN EINER BRENNKRAFTMASCHINE
Title (fr)
PROCEDE ET DISPOSITIF POUR L'EXPLOITATION D'UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 0000051 W 20000108
- DE 19900740 A 19990112
Abstract (en)
[origin: DE19900740A1] The invention relates to a method and to a device for operating an internal combustion engine which is operated with a lean air/fuel mixture in at least one operational state. To this end, the fuel amount to be injected and/or the injection time to be output is determined on the basis of a reference value. In order to monitor the functionality, the actual torque of the internal combustion engine is determined on the basis of the fuel amount to be injected and/or the injection time to be output. Said actual torque is compared with a maximally permissible torque and an error reaction is initiated if the actual torque exceeds the maximally permissible value. Simultaneously, a value representing the oxygen concentration in the effluents is compared with at least one predetermined threshold value and an error reaction is initiated if said oxygen concentration exceeds said threshold value.
IPC 1-7
IPC 8 full level
F02D 45/00 (2006.01); F02D 41/14 (2006.01); F02D 41/22 (2006.01); F02D 41/30 (2006.01)
CPC (source: EP KR US)
F02D 41/1497 (2013.01 - EP US); F02D 41/22 (2013.01 - EP KR US); F02D 41/3023 (2013.01 - EP US); F02D 2200/1004 (2013.01 - EP US); F02D 2250/18 (2013.01 - EP US); F02D 2250/26 (2013.01 - EP US)
Citation (search report)
See references of WO 0042307A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19900740 A1 20000713; DE 50007735 D1 20041021; EP 1062417 A1 20001227; EP 1062417 B1 20040915; JP 2002535533 A 20021022; JP 4338900 B2 20091007; KR 100694742 B1 20070314; KR 20010041779 A 20010525; RU 2239078 C2 20041027; US 6386180 B1 20020514; WO 0042307 A1 20000720
DOCDB simple family (application)
DE 19900740 A 19990112; DE 0000051 W 20000108; DE 50007735 T 20000108; EP 00902542 A 20000108; JP 2000593852 A 20000108; KR 20007010040 A 20000909; RU 2000125820 A 20000108; US 64601400 A 20001109